CVE-2021-4156
7.1 · HIGHOverview
CVE-2021-4156 is a high-severity vulnerability affecting libsndfile_project libsndfile. It was published on March 23, 2022 and has a CVSS 3.1 base score of 7.1 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
An out-of-bounds read flaw was found in libsndfile's FLAC codec functionality. An attacker who is able to submit a specially crafted file (via tricking a user to open or otherwise) to an application linked with libsndfile and using the FLAC codec, could trigger an out-of-bounds read that would most likely cause a crash but could potentially leak memory information that could be used in further exploitation of other flaws.
Remediation
Check the references section for vendor advisories and patches from libsndfile_project. Update libsndfile to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
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References
Frequently Asked Questions
What is CVE-2021-4156?
CVE-2021-4156 is a high-severity vulnerability affecting libsndfile_project libsndfile. It was published on March 23, 2022 and has a CVSS 3.1 base score of 7.1 (HIGH).
How severe is CVE-2021-4156?
This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-4156?
Check the references section for vendor advisories and patches from libsndfile_project. Update libsndfile to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-4156?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-4156 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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